java - 如何调用其他方法的返回是其他方法的输入？

Question

我希望能够为另一个方法的输入调用三个方法的返回。在下面的示例中，我有其他方法从 MM/DD/CCYY 日期中提取月、日和年。然后，dayOfWeekMethod 获取这些整数并计算出给定日期是星期几。如何正确格式化前两行以正确给出结果？谢谢!!

这是我所拥有的(这是错误的):

System.out.println("The date is "+MyDateTest.dayOfWeekMethod(MyDateTest.monthMethod(date),
 MyDateTest.dayMethod(date), MyDateTest.yearMethod(date));

public static int dayMethod(String dateInput){
    int day = MyDate.getDay(dateInput);

return day;
}

public static int monthMethod(String dateInput){
    int month = MyDate.getMonth(dateInput);

    return month;
}

public static int yearMethod(String dateInput){
    int year = MyDate.getYear(dateInput);

    return year;
 }

public static String dayOfWeekMethod(int month, int day, int year){
    String dayOfWeek = MyDate.dayofWeek(month, day, year);

    return dayOfWeek;
}

Answer 1

无法测试，因为我没有 MyDate 类，但如果您的 MyDate 类有效，这应该可以工作。

public static void main(String[] args) {
    String date = "";
    int day = dayMethod(date);
    int month = monthMethod(date);
    int year = yearMethod(date);
    System.out.println("The date is "+dayOfWeekMethod(month,day,year));
}

public static int dayMethod(String dateInput) {
    int day = MyDate.getDay(dateInput);

    return day;
}

public static int monthMethod(String dateInput) {
    int month = MyDate.getMonth(dateInput);

    return month;
}

public static int yearMethod(String dateInput) {
    int year = MyDate.getYear(dateInput);

    return year;
}

public static String dayOfWeekMethod(int month, int day, int year) {
    String dayOfWeek = MyDate.dayofWeek(month, day, year);

    return dayOfWeek;
}